We did some testing with the Yogi Bears and found out there might be either be a bug in the electronics or software. We plugged in 5 Yogi Bears and only 4 was detected by Dawn, the 4 that was detecting was flashing red light, which tells us that they are working. When we test the 5th Yogi Bear, we unplugged one of the 4, and surprisingly it was flashing red light also. This leads us to believe only 4 Yogi Bears are supported at the moment, which will cause a problem to all of the teams including us. This is a huge limitation, so if a patch could be sent out ASAP that would be great!

Here is my analysis of the issue:0. Do you only have the Yogi bears plugged in? There is a known limit to the number of devices usable which includes Yogi bears, team flags, battery buzzers, etc. Currently you can only have 5 devices total.1. Did you check to see if the usb port was the issue? Try plugging in the 5 Yogi bears into different usb ports to determine if this is an issue.2. Did you get your devices (Yogi bears, team flags, etc) flashed at a student worksession? If they were flashed, you should have gotten a green sticker on the device. With the update you should be able to have at least 5 devices running.3. If you have the time, you can come into student worksession with your robot. We should be able to fully diagnose the problem in person.

BTW we are working on another fix by scrimmage that will allow teams to use up to 11 devices by scrimmage. We will keep you posted for this update.

We did all of the tests listed by you. Only the 5 Yogi Bears are plugged in. Not a USB port issue, we play around with it. Not any cable issue either, tested that. All Yogi Bears have a green sticker. The problem might be the battery buzzer count as a 5th device and it is part of the main board, so we will have to power it no matter what we do. I think the only fix is that 11 devices that you are talking about, which sounds sweet!

I should follow up. As jesse mentioned, we are working on a fix right now that will support up to 11 devices.

Currently, if the USB Hub has the wifi dongle plugged in (which is required), it can support up to 5 devices smart devices max. Yogibears, Team Flags, Battery Buzzers, RFID readers, limit switches, etc are all smart devices.

Any smart devices that don't have the green sticker will detrimentally impact how many devices can be supported - maximum of three or four, depending on where they are plugged into the USB hub. As long as all of your smart devices have green stickers, you can ignore that complexity.

If you're looking for a quick way to get the 5th yogibear running, it turns out that you don't have to plug in the Battery Buzzer. The Battery Buzzer draws power directly from the PDB. If you unplug it, you won't see your battery voltage on dawn, but nothing else negative will happen.